Function validationHelper

validationHelper<T>(services): ((input: string, options?: ValidationHelperOptions) => Promise<ValidationResult<T>>)
Type Parameters
- T extends AstNode = AstNode
Parameters
- services: LangiumCoreServices
Returns ((input: string, options?: ValidationHelperOptions) => Promise<ValidationResult<T>>)
- - (input, options?): Promise<ValidationResult<T>>
  - Parameters
    - input: string
    - Optionaloptions: ValidationHelperOptions
    Returns Promise<ValidationResult<T>>
- Defined in packages/langium/src/test/langium-test.ts:556